Twin light-socket adapter converts a single medium-base lamp socket into two to expand lighting options. Molded plastic construction in an ivory finish with a compact cam-type taper-nose design. Non-grounding, 2-pole/2-wire configuration with UL and CSA listing. Electrical rating 15 A, 660 W. Measures approximately 4 inches long by 2 inches wide by 4 inches high and weighs about 0.10 lb. Intended for indoor use only. Model 128-I.